Firefighters from Fresno and Selma fire departments were called to assist. As the fire grew, a third alarm was called.

Crews said they faced a number of challenges while battling flames.

Ten engines and two fire ladders had to maneuver down a narrow road leading to the warehouse. Firefighters also had to call the Malaga Water District to increase water pressure.

Despite the challenges, roughly 30 firefighters had the blaze under control just after 7 p.m.

Firefighters continue to monitor a building at Paul Evert's RV Country Wednesday morning. The warehouse caught fire just after 6 p.m. on Tuesday.(Photo: Sheyanne Romero)

The warehouse was used to make repairs on RVs, employees said. The 15,000 square-foot building was one of two working stations on the property for technicians. It was the smaller of the two buildings, housing 10 technicians, their equipment and RVs.

"There was no other fire spread outside of that building," Wittwer said. "There were other mobile homes inside but employees were able to start them up and get them out of the way before the fire progressed."

Due to fire damage, the building was not safe enough for firefighters to enter. Around midnight heavy equipment was used to stabilize the building so that crews could get the mobile homes out of the warehouse.

"We're trying to get some of the walls and roof off of the building so we can get in there and fully extinguish [the fire]," Wittwer said.

On Wednesday morning, employees arrived to work like it was any other day.

But many had a sleepless night.

"It's going to be business as usual," said Parts Manager Stacy Alvarado. "We have lots of customers who are probably going to be calling wants to know the status of their units."

Managers are unsure how many mobile homes were damaged in the fire.

"We're just going to work through this obstacle and take care of our customers the best we can," Alvarado said.

The cause of the fire is under investigation. Firefighters remained on scene throughout the night to monitor the building.

No injuries were reported.

Paul Evert's has seven locations along the west coast but Fresno is the "flagship" location, according to the company's website.

The business sits on 26 acres along Highway 99.

Firefighters continue to monitor a building at Paul Evert's RV Country Wednesday morning. The warehouse caught fire just after 6 p.m. on Tuesday.(Photo: Sheyanne N Romero)